Overnight leader Kim Si-woo extended his lead at the Wyndham Championship in North Carolina to four shots after following up his brilliant round of 60 on Friday with another impressive six-under 64.
The South Korean shot seven birdies, including one at the last, and one bogey to close on 18-under, four strokes clear of nearest challenger Rafa Cabrera Bello from Spain, who posted a five-under score of 65 to finish the day on 14-under in Greensboro.
American Jim Furyk - the only man to shoot 58 on the PGA Tour - posted three birdies and an eagle, on the 15th, but bogeyed the final two holes to slip five shots adrift of the 21-year-old leader.
England's Luke Donald and Northern Ireland's Graeme McDowell both fired rounds of 64 to move back into contention.
Donald, who had fallen back to seven-under on Friday after his hole-in-one heroics in his opening round, shot six birdies in a bogey-free round of 64 to go 13-under and climb up four places to be tied for third alongside Furyk and Kevin Na, whose double-bogey at the final hole saw him card a three-under round of 67.
McDowell, who followed his opening round of 68 with a 66 on Friday, is a stroke further back on 12-under after posting eight birdies on the third day and would have been even closer to Kim had it not been for successive bogeys at the 11th and 12th.
American Scott Langley was the biggest mover of the day after climbing up 47 places to be tied-10th on 11-under thanks to an eagle and seven birdies in his round of 62, which included one bogey.
Fellow American DA Points moved up 25 places to join Langley on 11-under after shooting nine birdies and two bogeys in a round of 63.
Source: PA
